Car-truck.



'1. E. MUHLFELD & H. F. BALL.

CAR TRUCK.

APPLICATION FILED APR.28. I915.

Patented July 11, 1916.

2 SHEETS--SHEET Ill/II 1 S E 3 S E N W W J. E. MUHLFELD 81 H. F. BALL.

CAR TRUCK.

APPLICATION FILED APR. 28, 1915.

1 1 90,79 1 Patented July 11, 1911;

2 SHEETSSHEE'T 2.

INVENTORS 5 9/ To all whom 'it may concern eni'irnn eif'eeiee e inee QFFEQE;

JOHNE. MUH'LEELD, OF SCAR-SDALE. AND HEEMAN i. BALL, 8F NEW YORIK, N. Y.

CAKTRUCK Be it known that we,'Joi-1N F.

of Scairs'rlale, in ihec'ounty of VvTestchea-ter and-Sh te of New York, and llmmnn F,

BALL; of the borough of Mnnhattnn, in the ci y, e0unty,.:and-St-ate of New York, have jointly inyenteda certain new'antl useful Improvement in Car-Trueks,"0f which improven'ient the following 18 a specification.

The object of ourjnventionto provide a truck for railroad vehieles, the side frame menihers 0f which shallbe so constructed and connected that they will be held rigidly against relative lateral motion the squarenessof 'the trnclc in n. horizontlil'phine will he, ass(gred, iirhileflexibility n relation to ir'reg'nlsiii trnck enrlit-ions'; nnrlelimite l :l frame torsional movement is perre("lucii lg, the ,max

zind' eii'ibling I weight to beinade'; "and. that;disconnection of-the's'ide: members in the eventtof derail is a View,the? rightfhft'nchhalf of wh ing, 1", formed on its top, at

a to .responding i'lediletinn I of [He [it or otheraceifient shnlllm prevented.

The iin roveinen't. elni'ined is hereinafter min a' ink is a vertical longituilinel-vxction mken peg-l through the middle transverse plane (I join-mil box, and partly through the mill-c tz'nnsverne' plane of the entire strnctzr of a car truck, illustrating an :ipplie our invention; Fig. 2, a View, the right nan-(l half of which is a. horizontal erction, 221.28 through thea-xial lines of an :lxleanrl an: n journal l)OX.2lR(l pivot, and the lefthand half nplan View; Fig. 3, a. View, the, right hand half of which is a vertical triu section, taken on the line ;1:--:@ of and the left hand half, a. similar seetien, taken in the middle transverse plane of truck; and, Fig. 4. a similar section 5 tr'ating a structural modification.

Our invention is herein illnmzrnted 115 up plied in a four wheeled car truck, the mine of which is composed of tw n Sid? in; 1 which,- in this instance, are integral castings, of hollow or '-nhul4:. tion, each having v horizontal swing Specification of Letters Patent.

mum bentlin g' moment Patented July 11,1915.

- Apnlieation file-'1 April 28, 1915. Serial No. 24,497.

ends; and a. transom, Z, -whiche xtemls from one to the other of the side members iiiand adjoining: the middle irzinsvers'eplane of the shown in Fige. l and 2; made-0f greater 1 slrimtion, the load imfi esecl upon'the rigid transom transmittedtherefrom to each of the side members of the framegit two points,

which are lueutedntas fir-eel; elon'g itudinal lll-illllfifffi apart as practicable, the l'ondbeing 'j..he ends of the transom are,' as

thereby distributed on the length hi the side members, instead of being epplieclzit and nee! the central transverse planes thereof nml a limited. degree of flexibililifbetween the transom end siclemegnbeis is permitted.

Asshown in FigSQI te- 3 inclusive, the

transom is held against lateral :nievenient relatively to the sidefifame members, 1, 1,:

hr downwardly projecting tenons, 2*, which.

fit in e'mresponding recesses or. Sockets in the-tops of the. side fmn'ie'members, a n lhy ilewn wnrdly projeeting' lips, 2?,- iornied euntrnlly en its ends' and extending'qvr-the adjoining portions of the sid Tame me i F hows t 2e transom as pro with lips, which engnge'flie eiilefrnnie mropposite sides of the hearing a m and per'fm-m-tl'ie game fnnntien as tenmi 21ml socket eenstrnc'tion. above 6% An substantial degree of relative monument of 'tlie'trnnsom llllil side frame members. more particularly vertical detach merit of the fennel-from the letter, is peek phi-renter lay pins, 2 posing through on the hottom of the transom; and Q21 the frame members, illl i held [on 2: he s or cutters,

he seen-that l'zy the above construccmmection of the transom; to the i ."v' a simple mu? it: 1-

v umnnei, and at points maximum distance (apart permitting flexibility of the frame in running over irregular track, will be apparent to t ose who are familiar with the operation of railroad rolling stock.

The truck wheels, 3, are secured, usual manner, on axles, 3, the journals, 3", of which rotate' under bearings, P, fitted in journal boxes, '4, each of which is adapted to move vertically, but not laterally or longitudinally, relatively to the frame, by the following means: Each of the journal boxes, 4, is formed Integral with, or rigidly con nected to, an arm, at, which is pivotally connected" to the side frame supported by the journal box, by alpin, 4 passing through the inner end of the arm and through a long bearing or bearings on .the side frame member. As shown in Fig. 1, the arms, 4, are forked, their upper and lower members fit ting against the top and bottom of the journal box, respectively, and they are secured thereto by vertical bolts or rivets, 4", located on opposite sides of the journal box. The degree of relative movement of the side frame members and the journal box arms and journal boxes, is limited by links, 4*, fitted in erforations in the ends of the upper mem ers of the journal boa arms The truck frame is supported on the journal boxes through the intermediation of springs, 5, a nest or plurality of which is interposed between each of the spring bearings, 1", of the side members, and an equalizing plate, .6, which bears centrally on the upper member of the adjacent journal box arm, 4, and provides, on its upper surface,

1 a lowe bearin for the sprin s, 5.

We "c aim as our invention and desire to secure by Letters Patent:

1; In a railroad truck, a frame compris ing twoside members, a transverse connecting member which is supported, without,

osltive connection, on each of the side memers upon bearing faces thereon located at substantial distances from the central transverse plane of the truck, and means for de- 'tachably, but not rigidly, connecting the two side fltlll, members, each having two in the bearing faces located at substantial'dis tances from its middle transverse plane; a transom having end faces supported, without positive connection, on said bearing facesand lugs dependin from its bottom in its middle longitudinal plane, and means for detachably, but not rigidly, connecting said lugs to the side members.

3. In a railroad truck, the combination of t\'\o side frame members, each having two bearing faceslocated at substantial distances from its middle transverse-plane; a transom having end faces supported, 'without posi tire connection, on said bearing faces, means for effecting lateral engagement of the tran' som with the side frame members, with the capacity of flexibility without substantial relative lateral movement, and means for detachably, but not rigidly; connecting the transom to the side frame members.

4. In a railroad truck, the combination of two side frame members, each having two bearing faces located at substantial distances from its middle transverse plane; a transom having end faces supported on said bearing faces; interlocking projections on the transom, laterally engaging the side members, adjacent to said bearing faces; downwardlv projecting lips on the transom, adjoining the outer faces of the side members, in the central transverse plane of the truck; lugs depending from the bottom of the transom, in

said plane; and pins passing through said connecting the transom and side members.

JOHN E. MUHLFELD. HERMAN F. BALL.

Witnesses:

, JAMES MCLAUGHLIN,

H. F. MoDnyi'r'r. 

